Drill-chuck or the like



s'rarss T QFFICE.

JOHN' H. PHILLrPs, or CHICAGO; ILLINoIs.

DRIL-CHUCK 0a THE LIKE.

Appleationfile'd February 27, 12520;V Serial No. 361,903.

! 10 (LZZ wlwm 'it may cozcern x Be it known that I, 'JOHN H. PHILLIrs, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain newj and useful mprovements in Drill-Chucks or the like` of which the following is a description.

My invention belongs to that general class of devices known as chucks and' relates particularly to ,a chuck adapted for use with drills used for drilling holes in concrete, stone, brick or the like. The invention has among its objects lthe production of a device of the kind described, that is simple, convenient, dura'ble, efiicient and satisfactoryv for use wherever found applica'ble. The same has particularly as an object the production of a chuck of the kind described, applicable for use with tubular drills of the type described in my pending application, Serial No. 312,24z3, filed July 21, 1919. Many other objects and advantages of the constructon herein shown'and'described will'be obvious' to those skilled in the art, from the disclosure herein given. To this end my invention consists of the novel construction, arrangement and combination of parts herein shown and described and more particularly pointed out in the claims. l i i In the drawings, wherein like reference characters indicate like or corresponding parts, p

i Figure 1 is a view in elevation and partial sectional view of one'form of my chuck with one type of drillpositioned therein,

Fig. 2 is a similar view of another form of a chuck, i

VFig. 3 is a sectional view taken substantially on line 3-3 ofFig, 2, and Fig. 4 is' a sectional view of a modified form of the same i .As stated, the chucks herein illustrated anddescribed are designed for use with shell drills, shown and describedin my pending application, Serial No; 812,248 referred to,`

and are especially'adapted for use with the said drills for drilling` up holes in concrete ceilings. .i p

lVhenfdrilling up holes with the tubular or core type vdrills referred to, the cuttings from drill will fall down through boreof drill, thus cleaning by gravity.

The purpose of my inventionis to provide chucksior holders :that will substantia-lly hold thediiferent types of shell drills for drilling, different kinds of drilling hammers. Said chucks constructed with a bore or passage corresponding to the bore of the4 drill, said bore terminating in a slot or opening. in the side of the chuck at a point below the end of the drill and above the point at which the chuck engages with the hammer or operating mechanism, in such manner that the cuttings will pass down through drill and chuck, and out the side, thus obviating the necesslty of removing drill for Cleaning.

Referring to the drawings, particularly Fig. '1, 1 represents a chuck head which is formed to suitably engage the drill, as shown, With a fiared recess 2, and with an opening or bore 8 extending toward the opposite end of the shank 4, and terminatng in the slot or opening in the side of shank, as at 5, to provide an Outlet. The end 4 of the'shank is constructed in a desired manner ing mechanism -for the chuck. As shown at w 4;' the same is tapered. y I have not consideredl it necessary to illustrate the particular type of hammer or actuating mechanism for Operating the chuck, as the same may be of the spring, pneumatic, ,electric or similar type. The drill shown is tubular and made of one or more parts, vand is referred to in my pending application, mentioned as projecting type. This type is designed for drilling holes of a depth corresponding to length of drill from the end substantially to the end of the chuck o r intermediate depth. This chuck is particularly suitable to this type of drill in which the tapers of drill and chuck are of such' degree as to wedge and hold in rigid contact under action of hammer. The drill illustrated is made in two parts 6,-the same being provided with cutting'faces, edges, or the equivalent, 7 at` the end for engagement with the work to be drilled. If desired the' same may be slight-ly flared as indicated at 8.

The type of chuck illustrated in Fig. 2 is Vfor use with shell drills referred to in my pending application as fiush type. This fiush type of drill is designed for drilling holes of a depth .equal to the overall length of the drill, so that the chuck end of drill will befiush with surface of the material drilled when the chuck is removed. The purpose of this chuck is to provide a means and which can be operated by the for holding' the said flush type drills while) the same are operated to drill holes their full depth, and which may be easily removed or i disengaged, leaving the shell drillin its own hole.

In Fig. 2, 11 represents a head and 12 a collar or sleeve arranged thereon. .In this.

case the head is tubular, the shank 14: having a bore and side Outlet' 13 as previously the particular hamme'r mechanism in which chuck Vis to be used. The sleeve or collar 12 isnormally supportedand'inaintained in substantially the position shown' by a spring,r 16, or the equivalent, bearing against the shoulder 17 and the end of the'sleeve. The drill shown in this figure is in two parts,rit being understood that the same may be made in one, two or morel parts. The particular drill illustrated is provided with cutting'faces 19. The opposite end of the drill is shown'with inclined faces at the meeting` edges of the parts, and lugs 20 on the head of shank 111 arranged to engagein the spaces between the inclined faces in such manner that the drill may be turned back and forth as reopuiredv in stone drilling. The sleeve or collar 12 is slidably mounted on-the shank or stein 14, and the drill'and shank are of' the same size, so that sleeve 12- will also bea sliding' 'fit on thefdrill. The operation of drilling the shell drill into full'depths is as follows: The two-piece drilll is placed in position as shown in chuck, the sleevecholding' same assembled and in line ;V the drill isthen held in contact with work to be' drilled -andoperated by theV desired type of hammer. lVhen' Jthe hole is drilled in a little way the sleeve 12' comes in' contact lwith surface being'drilled and comes to rest, the drill and shank 14: sliding through it as the hole progresses, the spring yielding accordingly, the sleeve acting'to hold the two part drill assenibled until the same'is well advanced in the hole after which the walls of the hole act as guide; VThe sleeve continues to hold the drill'in'line and engagement with the. head 11, in such manner that lugs 20 will operate to turn `drilluntil same is fiush'with surface.

In Fig. 4,V I have illustrated a simple form of a similar chuck. in which l21 reprezsents the head and shank of `tubular construction andv provided with an outlet 22 for the discharge of the cuttings. In this type, however., the collar or sleeve is rigidly mounted on the head'of shank `in the positionishown.` 25 arezlug's similar toilugs 20. In this case I have shown-a'single piece drill 26, also of the projecting type, but with -a straight instead of tapered end proj ecting into Chuck, andwith notches for engagement with lugs 25. Vh'ile the drlll shown is of one Vpiece it is understood it may be made in one or more parts and pro? videdwithcutting faces or edges'27. It is unnecessary to describe the drill in detail lother than to say that it is designed tobe' drilled in until the ;end of the chuck'coines in contact with the work surface, when'the chuck is removed and the drill left in the holes it drilled, wherejit is utilized as an expansion shell forV carrying hangers, etc.,

as set forth inlmy co-'pending 'application p necessarily require the back and forth turn-V ing while drilling, as in thistype of drill,V

the jump or vihration from blow of hammer is suihcient to alter position or contact, so that lugs 20 and 25, as prevrously :de-

scribed, may not be'required.v :I have notV considered it necessary herein to point out the various styles' andV types of drills andv actuating mechanisms which maybe used with the Chuck. p i' Havmg thus described myj1nvention,,it

isv obvious that various immaterial modifications' may be made v'in the same without departing from thespirit'of iny invention; hence I do not wish-to be understoodas limiting myself to the exact form, construction, arrangement andcoinbination of parts herein shown and described. or uses mentioned. i' What I claim as new anddesire to secure by Letters Patent is: 7 i

- 1. In adrill chuckof .thekinddescribed and in combination, a shank havingV a head constructed to engage a drill, and a drill supporting member adapted to surround said drill and slidable on said shank away from said drill. 2. In a devicev of thekind described and in co1nbination,a shank constructed at one end to engape a drill, and a sleeve adapted to embrace said drill to support it and slidable on said shank away fromsaid drill.

3. In adevice Vof. the kind' described and in combination, a drill c-huck consistingof a ,shank having' a headconstructedto engage ,the drill end and'V provided with an opening extending from .the head 'and to a point below the head and Ihaving an Outlet to the exterior of the shank, and means. for yieldably uportingsa'id drill beyond said shank ea i .4. In a. drill chuck-,of the kind described and in combination, a shank constructed at. one end to engage with the `drill end and having a sleeve slidably Varranged thereon,

` means for maintaining said sleeve inoperative position, said shank having an opening therein extending from the said end toward the opposite end and terminating at the exterior of the shank.

5. In a drill Chuck of the kind desoribed and in combination, a shank constrnoted at one end to engage With the drill end and having a sleeve slidably arranged thereon, yieldable means for maintaining said sieeve in operative position, said shank having` an opening therein extending from the said end toward the opposite end and terminating at the exterior of the shank.

6. In a drill chuck of the kind described and in combination, a shank constructed at one end to eng-age With the drill end and having a sleeve sldably arranged thereon, a sprinv arranged on said shank and yieldably engaging said sleeve for maintaining said sieeve in operative position, said shank having an opening therein extending from the said endV toward the opposite end and tel'minating at the exterior of the shank.

7. In a device of the kind described and in combination, a shank, a recessed head arranged at the end of said shank and adapted to slidably receive and frictionally maintain va drill therein, said recessed portion and tool having no interengaging drill-retaining projections therebetween, the opposite end of said shank arranged to engage a coperating mechanism, said shank provided With an opening extending from the head to the exterior of the shank at a point below said head for` the disohargje of material from the drill carried by the head.

In testimony whereof, I have hereunto signed my name in the presence of two subscribing Witnesses. i

JOHN H. PHILLIPS. Witnesses:

BOY IV. I-IILL, BERTH HARTMANN. 

